[PATCH] powerpc: Move udbg code to arch/powerpc

Since the udbg code in ppc64 has no ppc32 equivalent, move it straight
over into arch/powerpc (and include/asm-powerpc for udbg.h).  In time,
we probably want to meld the various bits and pieces of 32-bit early
debugging code into udbg, but for now only include it on
CONFIG_PPC64=y builds.  The only change during the move is to
standardise the protecting #ifdef/#define in udbg.h, and move its
banner comment above the initial #ifdef (which seems to be normal
practice).

Built and booted on POWER5 LPAR (ARCH=powerpc and ARCH=ppc64).  Built
for 32bit multiplatform (ARCH=powerpc).

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 0 insertions, 125 deletions

diff --git a/arch/ppc64/kernel/udbg.c b/arch/ppc64/kernel/udbg.c
deleted file mode 100644
index 0d878e72fc4..00000000000
--- a/arch/ppc64/kernel/udbg.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * polling mode stateless debugging stuff, originally for NS16550 Serial Ports
- *
- * c 2001 PPC 64 Team, IBM Corp
- *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU General Public License
- *      as published by the Free Software Foundation; either version
- *      2 of the License, or (at your option) any later version.
- */
-
-#include <stdarg.h>
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/console.h>
-#include <asm/processor.h>
-
-void (*udbg_putc)(unsigned char c);
-unsigned char (*udbg_getc)(void);
-int (*udbg_getc_poll)(void);
-
-/* udbg library, used by xmon et al */
-void udbg_puts(const char *s)
-{
-	if (udbg_putc) {
-		char c;
-
-		if (s && *s != '\0') {
-			while ((c = *s++) != '\0')
-				udbg_putc(c);
-		}
-	}
-#if 0
-	else {
-		printk("%s", s);
-	}
-#endif
-}
-
-int udbg_write(const char *s, int n)
-{
-	int remain = n;
-	char c;
-
-	if (!udbg_putc)
-		return 0;
-
-	if (s && *s != '\0') {
-		while (((c = *s++) != '\0') && (remain-- > 0)) {
-			udbg_putc(c);
-		}
-	}
-
-	return n - remain;
-}
-
-int udbg_read(char *buf, int buflen)
-{
-	char c, *p = buf;
-	int i;
-
-	if (!udbg_getc)
-		return 0;
-
-	for (i = 0; i < buflen; ++i) {
-		do {
-			c = udbg_getc();
-		} while (c == 0x11 || c == 0x13);
-		if (c == 0)
-			break;
-		*p++ = c;
-	}
-
-	return i;
-}
-
-#define UDBG_BUFSIZE 256
-void udbg_printf(const char *fmt, ...)
-{
-	unsigned char buf[UDBG_BUFSIZE];
-	va_list args;
-
-	va_start(args, fmt);
-	vsnprintf(buf, UDBG_BUFSIZE, fmt, args);
-	udbg_puts(buf);
-	va_end(args);
-}
-
-/*
- * Early boot console based on udbg
- */
-static void udbg_console_write(struct console *con, const char *s,
-		unsigned int n)
-{
-	udbg_write(s, n);
-}
-
-static struct console udbg_console = {
-	.name	= "udbg",
-	.write	= udbg_console_write,
-	.flags	= CON_PRINTBUFFER,
-	.index	= -1,
-};
-
-static int early_console_initialized;
-
-void __init disable_early_printk(void)
-{
-	if (!early_console_initialized)
-		return;
-	unregister_console(&udbg_console);
-	early_console_initialized = 0;
-}
-
-/* called by setup_system */
-void register_early_udbg_console(void)
-{
-	early_console_initialized = 1;
-	register_console(&udbg_console);
-}
-
-#if 0   /* if you want to use this as a regular output console */
-console_initcall(register_udbg_console);
-#endif